Thanks for this Helmuth! I had the strength to remove the old non powered passenger seat late this afternoon and the nuts and bolts you mentioned were exactly as you described them to be. I was able to install the powered sport seat and what do you know - it's plug and play! I just plugged in the harness with the yellow plastic connector and the seat works!!! No mods whatsoever

Hope I will have the same luck when I install the driver's powered seat. Thanks again!